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   1  <?php
   2  /**
   3   * $Id: tiny_mce_gzip.php 158 2006-12-21 14:32:19Z spocke $
   4   *
   5   * @author Moxiecode
   6   * @copyright Copyright  2005-2006, Moxiecode Systems AB, All rights reserved.
   7   *
   8   * This file compresses the TinyMCE JavaScript using GZip and
   9   * enables the browser to do two requests instead of one for each .js file.
  10   * Notice: This script defaults the button_tile_map option to true for extra performance.
  11   */
  12  
  13      @require_once('../../../wp-config.php');  // For get_bloginfo().
  14  
  15      // Get input
  16      $plugins = explode(',', getParam("plugins", ""));
  17      $languages = explode(',', getParam("languages", ""));
  18      $themes = explode(',', getParam("themes", ""));
  19      $diskCache = getParam("diskcache", "") == "true";
  20      $isJS = getParam("js", "") == "true";
  21      $compress = getParam("compress", "true") == "true";
  22      $suffix = getParam("suffix", "_src") == "_src" ? "_src" : "";
  23      $cachePath = realpath("."); // Cache path, this is where the .gz files will be stored
  24      $expiresOffset = 3600 * 24 * 10; // Cache for 10 days in browser cache
  25      $content = "";
  26      $encodings = array();
  27      $supportsGzip = false;
  28      $enc = "";
  29      $cacheKey = "";
  30  
  31      // Custom extra javascripts to pack
  32      $custom = array(/*
  33          "some custom .js file",
  34          "some custom .js file"
  35      */);
  36  
  37      // WP
  38      $index = getParam("index", -1);
  39      $theme = getParam("theme", "");
  40      $themes = array($theme);
  41      $language = getParam("language", "en");
  42      if ( empty($language) )
  43          $language = 'en';
  44      $languages = array($language);
  45      if ( $language != strtolower($language) )
  46          $languages[] = strtolower($language);
  47      if ( $language != substr($language, 0, 2) )
  48          $languages[] = substr($language, 0, 2);
  49      $diskCache = false;
  50      $isJS = true;
  51      $suffix = '';
  52  
  53      // Headers
  54      header("Content-Type: text/javascript; charset=" . get_bloginfo('charset'));
  55      header("Vary: Accept-Encoding");  // Handle proxies
  56      header("Expires: " . gmdate("D, d M Y H:i:s", time() + $expiresOffset) . " GMT");
  57  
  58      // Is called directly then auto init with default settings
  59      if (!$isJS) {
  60          echo getFileContents("tiny_mce_gzip.js");
  61          echo "tinyMCE_GZ.init({});";
  62          die();
  63      }
  64  
  65      // Setup cache info
  66      if ($diskCache) {
  67          if (!$cachePath)
  68              die("alert('Real path failed.');");
  69  
  70          $cacheKey = getParam("plugins", "") . getParam("languages", "") . getParam("themes", "");
  71  
  72          foreach ($custom as $file)
  73              $cacheKey .= $file;
  74  
  75          $cacheKey = md5($cacheKey);
  76  
  77          if ($compress)
  78              $cacheFile = $cachePath . "/tiny_mce_" . $cacheKey . ".gz";
  79          else
  80              $cacheFile = $cachePath . "/tiny_mce_" . $cacheKey . ".js";
  81      }
  82  
  83      // Check if it supports gzip
  84      if (isset($_SERVER['HTTP_ACCEPT_ENCODING']))
  85          $encodings = explode(',', strtolower(preg_replace("/\s+/", "", $_SERVER['HTTP_ACCEPT_ENCODING'])));
  86  
  87      if ((in_array('gzip', $encodings) || in_array('x-gzip', $encodings) || isset($_SERVER['---------------'])) && function_exists('ob_gzhandler') && !ini_get('zlib.output_compression') && ini_get('output_handler') != 'ob_gzhandler') {
  88          $enc = in_array('x-gzip', $encodings) ? "x-gzip" : "gzip";
  89          $supportsGzip = true;
  90      }
  91  
  92      // Use cached file disk cache
  93      if ($diskCache && $supportsGzip && file_exists($cacheFile)) {
  94          if ($compress)
  95              header("Content-Encoding: " . $enc);
  96  
  97          echo getFileContents($cacheFile);
  98          die();
  99      }
 100  
 101  if ($index > -1) {
 102      // Write main script and patch some things
 103      if ( $index == 0 ) {
 104          // Add core
 105          $content .= wp_compact_tinymce_js(getFileContents("tiny_mce" . $suffix . ".js"));
 106          $content .= 'TinyMCE.prototype.orgLoadScript = TinyMCE.prototype.loadScript;';
 107          $content .= 'TinyMCE.prototype.loadScript = function() {};var realTinyMCE = tinyMCE;';
 108      } else
 109          $content .= 'tinyMCE = realTinyMCE;';
 110  
 111      // Patch loading functions
 112      //$content .= "tinyMCE_GZ.start();";
 113  
 114      // Do init based on index
 115      $content .= "tinyMCE.init(tinyMCECompressed.configs[" . $index . "]);";
 116  
 117      // Load external plugins
 118      if ( $index == 0 )
 119          $content .= "tinyMCECompressed.loadPlugins();";
 120  
 121      // Add core languages
 122      $lang_content = '';
 123      foreach ($languages as $lang)
 124          $lang_content .= getFileContents("langs/" . $lang . ".js");
 125      if ( empty($lang_content) )
 126          $lang_content .= getFileContents("langs/en.js");
 127      $content .= $lang_content;
 128  
 129      // Add themes
 130      foreach ($themes as $theme) {
 131          $content .= wp_compact_tinymce_js(getFileContents( "themes/" . $theme . "/editor_template" . $suffix . ".js"));
 132  
 133          $lang_content = '';
 134          foreach ($languages as $lang)
 135              $lang_content .= getFileContents("themes/" . $theme . "/langs/" . $lang . ".js");
 136          if ( empty($lang_content) )
 137              $lang_content .= getFileContents("themes/" . $theme . "/langs/en.js");
 138          $content .= $lang_content;
 139      }
 140  
 141      // Add plugins
 142      foreach ($plugins as $plugin) {
 143          $content .= getFileContents("plugins/" . $plugin . "/editor_plugin" . $suffix . ".js");
 144  
 145          $lang_content = '';
 146          foreach ($languages as $lang)
 147              $lang_content .= getFileContents("plugins/" . $plugin . "/langs/" . $lang . ".js");
 148          if ( empty($lang_content) )
 149              $lang_content .= getFileContents("plugins/" . $plugin . "/langs/en.js");
 150          $content .= $lang_content;
 151      }
 152  
 153      // Add custom files
 154      foreach ($custom as $file)
 155          $content .= getFileContents($file);
 156  
 157      // Reset tinyMCE compressor engine
 158      $content .= "tinyMCE = tinyMCECompressed;";
 159  
 160      // Restore loading functions
 161      //$content .= "tinyMCE_GZ.end();";
 162  
 163      // Generate GZIP'd content
 164      if ($supportsGzip) {
 165          if ($compress) {
 166              header("Content-Encoding: " . $enc);
 167              $cacheData = gzencode($content, 9, FORCE_GZIP);
 168          } else
 169              $cacheData = $content;
 170  
 171          // Write gz file
 172          if ($diskCache && $cacheKey != "")
 173              putFileContents($cacheFile, $cacheData);
 174  
 175          // Stream to client
 176          echo $cacheData;
 177      } else {
 178          // Stream uncompressed content
 179          echo $content;
 180      }
 181  
 182      die;
 183  }
 184  
 185      /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 186  
 187  	function getParam($name, $def = false) {
 188          if (!isset($_GET[$name]))
 189              return $def;
 190  
 191          return preg_replace("/[^0-9a-z\-_,]+/i", "", $_GET[$name]); // Remove anything but 0-9,a-z,-_
 192      }
 193  
 194  	function getFileContents($path) {
 195          $path = realpath($path);
 196  
 197          if (!$path || !@is_file($path))
 198              return "";
 199  
 200          if (function_exists("file_get_contents"))
 201              return @file_get_contents($path);
 202  
 203          $content = "";
 204          $fp = @fopen($path, "r");
 205          if (!$fp)
 206              return "";
 207  
 208          while (!feof($fp))
 209              $content .= fgets($fp);
 210  
 211          fclose($fp);
 212  
 213          return $content;
 214      }
 215  
 216  	function putFileContents($path, $content) {
 217          if (function_exists("file_put_contents"))
 218              return @file_put_contents($path, $content);
 219  
 220          $fp = @fopen($path, "wb");
 221          if ($fp) {
 222              fwrite($fp, $content);
 223              fclose($fp);
 224          }
 225      }
 226  
 227      // WP specific
 228  	function wp_compact_tinymce_js($text) {
 229          // This function was custom-made for TinyMCE 2.0, not expected to work with any other JS.
 230  
 231          // Strip comments
 232          $text = preg_replace("!(^|\s+)//.*$!m", '', $text);
 233          $text = preg_replace("!/\*.*?\*/!s", '', $text);
 234  
 235          // Strip leading tabs, carriage returns and unnecessary line breaks.
 236          $text = preg_replace("!^\t+!m", '', $text);
 237          $text = str_replace("\r", '', $text);
 238          $text = preg_replace("!(^|{|}|;|:|\))\n!m", '\\1', $text);
 239  
 240          return "$text\n";
 241      }
 242  ?>
 243  
 244  function TinyMCECompressed() {
 245      this.configs = new Array();
 246      this.loadedFiles = new Array();
 247      this.externalPlugins = new Array();
 248      this.loadAdded = false;
 249      this.isLoaded = false;
 250  }
 251  
 252  TinyMCECompressed.prototype.init = function(settings) {
 253      var elements = document.getElementsByTagName('script');
 254      var scriptURL = "";
 255  
 256      for (var i=0; i<elements.length; i++) {
 257          if (elements[i].src && elements[i].src.indexOf("tiny_mce_gzip.php") != -1) {
 258              scriptURL = elements[i].src;
 259              break;
 260          }
 261      }
 262  
 263      settings["theme"] = typeof(settings["theme"]) != "undefined" ? settings["theme"] : "default";
 264      settings["plugins"] = typeof(settings["plugins"]) != "undefined" ? settings["plugins"] : "";
 265      settings["language"] = typeof(settings["language"]) != "undefined" ? settings["language"] : "en";
 266      settings["button_tile_map"] = typeof(settings["button_tile_map"]) != "undefined" ? settings["button_tile_map"] : true;
 267      this.configs[this.configs.length] = settings;
 268      this.settings = settings;
 269  
 270      scriptURL += (scriptURL.indexOf('?') == -1) ? '?' : '&';
 271      scriptURL += "theme=" + escape(this.getOnce(settings["theme"])) + "&language=" + escape(this.getOnce(settings["language"])) + "&plugins=" + escape(this.getOnce(settings["plugins"])) + "&lang=" + settings["language"] + "&index=" + escape(this.configs.length-1);
 272      document.write('<sc'+'ript language="javascript" type="text/javascript" src="' + scriptURL + '"></script>');
 273  
 274      if (!this.loadAdded) {
 275          tinyMCE.addEvent(window, "DOMContentLoaded", TinyMCECompressed.prototype.onLoad);
 276          tinyMCE.addEvent(window, "load", TinyMCECompressed.prototype.onLoad);
 277          this.loadAdded = true;
 278      }
 279  }
 280  
 281  TinyMCECompressed.prototype.onLoad = function() {
 282      if (tinyMCE.isLoaded)
 283          return true;
 284  
 285      tinyMCE = realTinyMCE;
 286      TinyMCE_Engine.prototype.onLoad();
 287      tinyMCE._addUnloadEvents();
 288  
 289      tinyMCE.isLoaded = true;
 290  }
 291  
 292  TinyMCECompressed.prototype.addEvent = function(o, n, h) {
 293      if (o.attachEvent)
 294          o.attachEvent("on" + n, h);
 295      else
 296          o.addEventListener(n, h, false);
 297  }
 298  
 299  TinyMCECompressed.prototype.getOnce = function(str) {
 300      var ar = str.replace(/\s+/g, '').split(',');
 301  
 302      for (var i=0; i<ar.length; i++) {
 303          if (ar[i] == '' || ar[i].charAt(0) == '-') {
 304              ar[i] = null;
 305              continue;
 306          }
 307  
 308          // Skip load
 309          for (var x=0; x<this.loadedFiles.length; x++) {
 310              if (this.loadedFiles[x] == ar[i])
 311                  ar[i] = null;
 312          }
 313  
 314          this.loadedFiles[this.loadedFiles.length] = ar[i];
 315      }
 316  
 317      // Glue
 318      str = "";
 319      for (var i=0; i<ar.length; i++) {
 320          if (ar[i] == null)
 321              continue;
 322  
 323          str += ar[i];
 324  
 325          if (i != ar.length-1)
 326              str += ",";
 327      }
 328  
 329      return str;
 330  };
 331  
 332  TinyMCECompressed.prototype.loadPlugins = function() {
 333      var i, ar;
 334  
 335      TinyMCE.prototype.loadScript = TinyMCE.prototype.orgLoadScript;
 336      tinyMCE = realTinyMCE;
 337  
 338      ar = tinyMCECompressed.externalPlugins;
 339      for (i=0; i<ar.length; i++)
 340          tinyMCE.loadPlugin(ar[i].name, ar[i].url);
 341  
 342      TinyMCE.prototype.loadScript = function() {};
 343  };
 344  
 345  TinyMCECompressed.prototype.loadPlugin = function(n, u) {
 346      this.externalPlugins[this.externalPlugins.length] = {name : n, url : u};
 347  };
 348  
 349  TinyMCECompressed.prototype.importPluginLanguagePack = function(n, v) {
 350      tinyMCE = realTinyMCE;
 351      TinyMCE.prototype.loadScript = TinyMCE.prototype.orgLoadScript;
 352      tinyMCE.importPluginLanguagePack(n, v);
 353  };
 354  
 355  TinyMCECompressed.prototype.addPlugin = function(n, p) {
 356      tinyMCE = realTinyMCE;
 357      tinyMCE.addPlugin(n, p);
 358  };
 359  
 360  var tinyMCE = new TinyMCECompressed();
 361  var tinyMCECompressed = tinyMCE;